CV-sida

José L. J. Ledesma

Jose Ledesma
Postdoctoral Researcher (PhD since March 2016) - Catchment Biogeochemistry and Modelling

Presentation

My research aims to understand the hydrological and biogeochemical processes controlling the mobilization, transformation, and transport of solutes from land to surface waters that can support successful management strategies for aquatic resources. My empirical work focusses on processes operating at hillslope, riparian (near-stream), and catchment scales with the ambition to upscale those processes to the larger landscape scale. In addition, my research interest and expertise include process-based modelling for climate impact assessment on catchment hydrology and biogeochemistry. The core of both my empirical and modelling research is based on the study of organic carbon dynamics and their implications for the global carbon cycle and drinking water supply. I also work with nutrients, metals, base cations, silica, and sulfate.

Publikationer i urval

[16] O’Driscoll, C., Ledesma, J. L. J., Coll, J., Murnane, J. G., Nolan, P., Mockler, E., Futter, M. N., and Xiao, L. Climate change is projected to have minimal effects on dissolved organic carbon (DOC) in an Irish drinking water basin, Science of the Total Environment, In review.

[15] Ledesma, J. L. J., Kothawala, D. N., Bastviken, P., Maehder, S., Grabs, T., and Futter, M. N. Stream dissolved organic matter composition reflects the riparian zone, not upslope soils in boreal forest headwaters, Water Resources Research, In review.

[14] Gutchess, K., Jin, L., Ledesma, J. L. J., Kelleher, C., and Lu, Z. Long-term climatic and anthropogenic impact on stream water salinity in New York State: INCA simulations offer cautious optimism, Environmental Science & Technology, In review.

[13] Bussi G., Whitehead, P. G., Gutiérrez-Cánovas, C., Ledesma, J. L. J., Ormerod, S. J., and Couture R. Modelling climate and land-use change impacts on nitrate and aquatic ecosystems in the River Wye (Wales), Science of the Total Environment, In review.

[12] Ecke, F., Levanoni, O., Audet, J., Carlson, P., Eklöf, E., Hartman, G., Mckie, B., Ledesma, J. L. J., Segersten, J., Truchy, A., and Futter, M. N. (2017). Meta-analysis of environmental effects of beaver in relation to artificial dams, Environmental Research Letters, 12, 113002, doi: 10.1088/1748-9326/aa8979.

[11] Ledesma, J. L. J., and Futter, M. N. (2017). Gridded climate data products are an alternative to instrumental measurements as inputs in rainfall-runoff models, Hydrological Processes, 31, 3283-3293, doi: 10.1002/hyp.11269.

[10] Ledesma, J. L. J., Futter, M. N., Blackburn, M., Lidman, F., Grabs, T., Sponseller, R. A., Laudon, H., Bishop, K. H., and Köhler, S. J. (2017). Towards an improved conceptualization of riparian zones in boreal forest headwaters, Ecosystems, doi: 10.1007/s10021-017-0149-5.

[9] Blackburn, M., Ledesma, J. L. J., Näsholm, T., Laudon, H., and Sponseller, R. A. (2017). Evaluating hillslope and riparian contributions to dissolved nitrogen (N) export from a boreal forest catchment, Journal of Geophysical Research – Biogeosciences, 122, 324-339, doi: 10.1002/2016JG003535.

[8] Erlandsson, M., Oelkers, E. H., Bishop, K., Sverdrup, H., Belyazid, S., Ledesma, J. L. J., and Köhler, S. J. (2016). Spatial and temporal variations of base cation release from chemical weathering on a hillslope scale, Chemical Geology, 441, 1-13, doi: 10.1016/j.chemgeo.2016.08.008.

[7] Oni, S. K., Futter, M. N., Ledesma, J. L. J., Teutschbein, C., Buttle, J., and Laudon, H. (2016). Using dry and wet year hydroclimatic extremes to guide future hydrologic projections, Hydrology and Earth System Sciences, 20, 2811-2825, doi: 10.5194/hess-20-2811-2016.

[6] Ledesma, J. L. J., Futter, M. N., Laudon, H., Evans, C. D., and Köhler, S. J. (2016). Boreal riparian zones regulate stream sulfate and dissolved organic carbon, Science of the Total Environment, 560-561, 110-122, doi: 10.1016/ j.scitotenv.2016.03.230.

[5] De Wit, H. A., Ledesma, J. L. J., and Futter, M. N. (2016). Aquatic DOC export from subarctic Atlantic blanket bog in Norway is controlled by seasalt deposition, temperature and precipitation, Biogeochemistry, 127, 305-321, doi: 10.1007/s10533-016-0182-z.

[4] Oni, S. K., Tiwari, T., Ledesma, J. L. J., Ågren, A., Teutschbein, C., Schelker, J., Laudon, H., and Futter, M. N. (2015). Local and landscape-scale impacts of clear-cuts and climate change on surface water dissolved organic carbon in boreal forests, Journal of Geophysical Research – Biogeosciences, 120, 2402-2426, doi: 10.1002/ 2015JG003190.

[3] Ledesma, J. L. J., Grabs, T., Bishop, K. H., Schiff, S. L., and Köhler, S. J. (2015). Potential for long-term transfer of dissolved organic carbon from riparian zones to streams in boreal catchments, Global Change Biology, 21, 2963-2979, doi: 10.1111/ gcb.12872.

[2] Ledesma, J. L. J., Grabs, T., Futter, M. N., Bishop, K. H., Laudon, H., and Köhler, S. J. (2013). Riparian zone control on base cation concentration in boreal streams, Biogeosciences, 10, 3849-3868, doi: 10.5194/bg-10-3849-2013.

[1] Ledesma, J. L. J., Köhler, S. J., and Futter M. N. (2012). Long-term dynamics of dissolved organic carbon: Implications for drinking water supply, Science of the Total Environment, 432, 1-11, doi: 10.1016/j.scitotenv.2012.05.071.


Kontaktinformation
Postdoktor vid Institutionen för vatten och miljö; Sektionen för geokemi och hydrologi
Telefon: 018-673059
Postadress:
Institutionen för vatten och miljö
Box 7050
750 07 UPPSALA
Besöksadress: Lennart Hjelms väg 9, Uppsala